
:root{--ink:#183632;--muted:#51655f;--accent:#176859;--bg:#fcfdfb;--soft:#eff5ef;--line:#dce6de}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,sans-serif;font-size:18px;line-height:1.55}a{color:inherit}button{font:inherit}.wrap{max-width:1160px;margin:auto;padding:0 36px}.header{height:96px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:19px;font-weight:700;letter-spacing:-.5px}.mark{width:38px;height:38px;border-radius:12px;display:block;flex:0 0 auto}.nav{display:flex;gap:28px;font-size:15px}.nav a{text-decoration:none}.nav a:hover{text-decoration:underline}.hero{text-align:center;padding:76px 0 0}.eyebrow{font-size:15px;color:var(--accent);font-weight:700;letter-spacing:.04em;margin:0 0 20px}.hero h1{font-size:clamp(44px,5.5vw,72px);font-weight:600;line-height:1.06;letter-spacing:-3.3px;max-width:880px;margin:0 auto 25px}.intro{max-width:620px;margin:0 auto;color:var(--muted);font-size:21px;line-height:1.55}.install-actions{display:flex;justify-content:center;gap:12px;margin:30px 0 18px}.button{border:1px solid var(--accent);border-radius:10px;min-height:52px;padding:13px 23px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:16px;font-weight:700;background:var(--accent);color:white}.button.secondary{background:transparent;color:var(--accent)}.button:hover{filter:brightness(.92)}a:focus-visible,button:focus-visible{outline:3px solid #c17420;outline-offset:5px}.privacy-line{font-size:15px;color:var(--muted);margin:0}.hero-stage{margin:55px auto 0;max-width:1000px;padding:28px 32px 0;background:var(--soft);border-radius:24px 24px 0 0;text-align:left;position:relative}.browser{background:white;border:1px solid #ccd9d0;border-radius:12px 12px 0 0;overflow:hidden;box-shadow:0 18px 60px #1f4b3012}.browser-top{height:39px;background:#f8faf7;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:6px;padding:0 15px}.dot{height:8px;width:8px;background:#cad4cd;border-radius:50%}.browser-title{margin:auto;font-size:12px;color:var(--muted);padding-right:35px}.history-window{height:520px;overflow:hidden;background:#f4efe4;display:flex;justify-content:center}.history-window img{width:560px;max-width:100%;height:auto;object-fit:cover;object-position:top;align-self:flex-start;display:block}.stage-caption{background:var(--bg);position:relative;margin:0 -32px;padding:17px 0 0;text-align:center;font-size:14px;color:var(--muted)}.section{padding:104px 0}.section h2{font-size:42px;line-height:1.15;letter-spacing:-1.6px;font-weight:600;margin:0 0 20px}.section-intro{color:var(--muted);max-width:650px;margin:0}.workflow{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:48px}.step-icon{font-size:22px;color:var(--accent);margin-bottom:15px}.workflow h3{font-size:23px;line-height:1.25;letter-spacing:-.4px;margin:0 0 12px;font-weight:600}.workflow p{color:var(--muted);font-size:17px;margin:0}.report-section{background:var(--soft)}.report-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:75px;align-items:center}.report-copy h2{max-width:410px;font-size:48px}.report-copy p{color:var(--muted);margin:0 0 24px;max-width:410px}.text-link{color:var(--accent);font-weight:700;text-underline-offset:5px;font-size:16px}.paper{background:white;border-radius:4px;box-shadow:0 18px 50px #27462b14;overflow:hidden;border:1px solid #dae1d8}.paper img{display:block;width:100%;height:auto}.report-caption{font-size:14px;color:var(--muted);margin:14px 0 0;text-align:center}.trust{display:grid;grid-template-columns:1fr 1fr;gap:90px}.trust h2{font-size:34px}.trust p{color:var(--muted);margin:0 0 20px}.quiet-label{font-size:14px;color:var(--accent);font-weight:700;margin-bottom:20px;display:block}.final{text-align:center;border-top:1px solid var(--line);padding:72px 0 80px}.final h2{font-size:42px;letter-spacing:-1.5px;line-height:1.15;font-weight:600;margin:0 0 16px}.final p{color:var(--muted);margin:0}.site-footer{border-top:1px solid var(--line);padding:28px 0 34px}.footer-row{display:flex;justify-content:space-between;gap:30px;font-size:14px}.footer-links{display:flex;gap:22px}.medical-note{font-size:14px;color:var(--muted);max-width:810px;margin:22px 0 0}.hero-stage img,.paper img{color:var(--muted)}
@media(max-width:760px){.wrap{padding:0 22px}.header{height:80px}.brand{font-size:16px;gap:9px}.mark{width:32px;height:32px;font-size:22px}.nav{gap:16px;font-size:14px}.nav .desktop{display:none}.hero{padding-top:43px}.hero h1{font-size:44px;letter-spacing:-1.9px;line-height:1.09}.eyebrow{font-size:14px;margin-bottom:18px}.intro{font-size:18px;max-width:340px}.install-actions{gap:10px;margin-top:25px}.button{font-size:14px;min-height:50px;padding:12px 15px}.privacy-line{font-size:14px;max-width:300px;margin:auto}.hero-stage{padding:14px 12px 0;margin-top:34px;border-radius:16px 16px 0 0}.browser-top{height:29px;padding:0 9px}.browser-title{font-size:10px;padding-right:12px}.history-window{height:310px}.history-window img{width:100%}.stage-caption{margin:0 -12px;font-size:13px;padding:12px 0 0}.section{padding:64px 0}.section h2{font-size:32px;letter-spacing:-1px}.section-intro{font-size:18px}.workflow{grid-template-columns:1fr;gap:30px;margin-top:34px}.workflow h3{font-size:22px}.step-icon{margin-bottom:8px}.workflow p{font-size:17px}.report-grid{grid-template-columns:1fr;gap:34px}.report-copy h2{font-size:36px;max-width:320px}.report-copy p{font-size:18px}.trust{grid-template-columns:1fr;gap:48px}.trust h2{font-size:30px}.quiet-label{margin-bottom:13px}.final{padding:55px 0}.final h2{font-size:34px}.footer-row{flex-direction:column;gap:16px}.footer-links{flex-wrap:wrap}.paper{max-width:480px;margin:auto}}

/* Production completion of the approved light-green composition. */
html{scroll-padding-top:108px}
a,summary{touch-action:manipulation;scroll-margin-top:108px}
:target,[tabindex]{scroll-margin-top:108px}
img{max-width:100%;height:auto;display:block}figure{margin:0}
a{ text-underline-offset:4px }p{margin:0 0 20px}
h1,h2,h3{font-weight:600;line-height:1.15;margin:0 0 20px;letter-spacing:-.035em}
h1{font-size:clamp(36px,4.5vw,60px)}h2{font-size:36px}h3{font-size:22px;letter-spacing:-.02em}
h1 em{font-style:normal}.small,figcaption,.citation{font-size:14px;line-height:1.6;color:var(--muted)}
.site-header{position:sticky;top:0;z-index:5;background:var(--bg);border:0;--divider-gutter:36px}
.site-header nav a{display:inline-flex;align-items:center;min-height:44px}
.nav a[aria-current]{text-decoration:underline;text-decoration-thickness:2px}
.skip-link{position:fixed;top:-120px;left:16px;padding:12px 20px;background:white;z-index:10}
.skip-link:focus{top:10px}
.hero{padding:76px 36px 0}.section.wrap{padding:104px 36px}
.browser-title{font-size:14px}.workflow p{font-size:18px}
.install-actions{flex-wrap:wrap}.button{white-space:nowrap}
.report-copy p.small{font-size:14px;margin-top:24px}
.trust>div,.workflow>div,.report-grid>div{min-width:0}
.guide-shortcuts{margin-top:22px!important;font-size:16px}
.anchor-alias{display:block;height:0;scroll-margin-top:108px}
.site-footer{padding:28px 36px 34px;border:0;position:relative;--divider-gutter:36px}
.site-header::after,.site-footer::before{content:"";position:absolute;left:var(--divider-gutter);right:var(--divider-gutter);border-top:1px solid var(--line);pointer-events:none}
.site-header::after{bottom:0}.site-footer::before{top:0}
.footer-brand{font-weight:700;text-decoration:none}.site-footer .install-actions{justify-content:flex-start;margin:18px 0}
.site-footer .button{font-size:14px;min-height:44px;padding:10px 14px}.site-footer .small{margin-bottom:0}
.page-intro{padding:64px 0 48px;max-width:850px}.standfirst{font-size:21px;max-width:62ch;color:var(--muted);margin:24px 0 0}
.document{padding-bottom:64px}.prose{max-width:76ch}.prose h2{margin-top:48px;font-size:32px}.prose h3{margin-top:28px}
.prose ol{padding-left:24px}.prose li{margin-bottom:18px}.prose a{overflow-wrap:anywhere}
.source-entry{border-top:1px solid var(--line);padding:28px 0}.source-entry h2{margin-top:10px}
.chapter{border-top:1px solid var(--line);padding:64px 0;scroll-margin-top:108px}
.chapter-body>p{max-width:76ch}.lead{font-size:22px;color:var(--accent)}
.guide-toc{padding:28px 0;border-top:1px solid var(--line)}.guide-toc h2{font-size:28px}
.guide-toc ul{padding-left:24px;margin:0;display:grid;gap:8px}.guide-toc a{font-size:18px;display:inline-block;min-height:44px;padding:8px 0}
.editorial-pair{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:48px;align-items:start}
.margin-note{border-left:3px solid var(--accent);padding:0 0 0 22px;margin:28px 0;max-width:76ch}.editorial-pair .margin-note{margin:0}
.margin-note h3{font-size:22px}.margin-note p:last-child{margin:0}
.reading-example{display:grid;grid-template-columns:max-content max-content max-content max-content;gap:0 20px;align-items:baseline;padding:24px 0;border-block:1px solid var(--line);margin:0 0 14px}
.reading-example div{display:contents}.reading-example span,.reading-example small{font-size:14px;color:var(--muted)}
.reading-example strong{font-size:64px;font-weight:600;color:var(--accent);letter-spacing:-.04em;line-height:1.2}
.reading-example b{font-size:50px;font-weight:400;color:var(--accent)}
.reading-example div:first-child span{grid-area:1/1}.reading-example div:first-child strong{grid-area:2/1}.reading-example div:first-child small{grid-area:3/1}
.reading-example b{grid-area:2/2}.reading-example div:nth-of-type(2) span{grid-area:1/3}.reading-example div:nth-of-type(2) strong{grid-area:2/3}.reading-example div:nth-of-type(2) small{grid-area:3/3}.reading-example .unit{grid-area:2/4;align-self:baseline}
.method-badges{display:flex;flex-wrap:wrap;gap:20px 32px;padding:24px 0;border-block:1px solid var(--line);margin:28px 0;align-items:baseline}
.method-badges div{display:flex;flex-direction:column;gap:6px}.method-badges strong{font-size:24px}.method-badges span{font-size:14px;color:var(--muted)}
.measurement-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:36px;align-items:start;margin:38px 0}
.steps{padding:0;margin:0;list-style:none;counter-reset:steps}.steps li{counter-increment:steps;position:relative;padding:0 0 28px 34px}
.steps li::before{content:counter(steps);position:absolute;left:0;top:2px;font-size:18px;color:var(--accent)}.steps h3{font-size:22px}.steps p{font-size:18px;line-height:1.65}
.position{background:var(--soft);padding:14px}.position figcaption{padding-top:16px}.care-note{font-size:18px;max-width:76ch;color:var(--muted)}
details{border-top:1px solid var(--line)}summary{position:relative;list-style:none;padding:20px 40px 20px 0;font-size:18px;cursor:pointer}
summary::-webkit-details-marker{display:none}summary::after{content:"+";position:absolute;right:8px;top:20px;font-size:24px;line-height:1.2}details[open]>summary::after{content:"−"}
summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}details p{font-size:18px}
#questions{margin-top:48px}.sample-screens{margin-top:40px}.sample-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:28px;padding-bottom:24px}.sample-grid img{width:100%;height:auto}.sample-grid figcaption{margin-top:12px}
@media(max-width:900px){.measurement-layout{grid-template-columns:1fr}.position{max-width:500px}.report-grid{gap:36px}}
@media(max-width:760px){
 .site-header{height:auto;min-height:104px;flex-wrap:wrap;gap:4px;padding-top:12px;padding-bottom:8px;--divider-gutter:22px}
 .brand{flex-basis:100%}.nav{width:100%;justify-content:space-between;gap:12px}
 .hero{padding:43px 22px 0}.section.wrap{padding:64px 22px}.browser-title{font-size:14px;padding-right:0}.browser-top{gap:4px}.dot{width:5px;height:5px;flex-shrink:0}
 .stage-caption{font-size:14px}.site-footer{padding:28px 22px 34px;--divider-gutter:22px}
 .page-intro{padding:44px 0 32px}.standfirst{font-size:18px}h1{font-size:36px}.chapter{padding:44px 0}.chapter h2{font-size:30px}.editorial-pair{gap:28px}
 .reading-example{gap:0 8px}.reading-example strong{font-size:52px}.reading-example b{font-size:40px}
 html{scroll-padding-top:120px}a,summary,:target,[tabindex],.chapter,.anchor-alias{scroll-margin-top:120px}
 .guide-toc ul{display:block}.guide-toc li{margin-bottom:8px}.workflow p{font-size:18px}
}
@media(max-width:360px){.hero h1{font-size:40px}.button{padding:12px 10px;gap:5px}.hero .button{font-size:14px}.browser-title{font-size:14px;letter-spacing:-.3px}.browser-top .dot{display:none}.reading-example strong{font-size:48px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* One document: a single, always-available six-link menu. No script or hidden mobile links. */
.site-header{height:auto;min-height:112px;flex-wrap:wrap;gap:6px;padding-top:14px;padding-bottom:10px}
.brand{flex-basis:100%}.nav{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;width:100%;font-size:18px}
.nav a{display:flex;align-items:center;justify-content:center;text-align:center;min-height:44px;padding:6px 2px;overflow-wrap:anywhere;line-height:1.35}
.landing-document{padding-top:48px;padding-bottom:64px;border-top:1px solid var(--line)}
.landing-document .section-title{font-size:clamp(32px,4vw,48px);line-height:1.12;letter-spacing:-1px;margin:0 0 24px}
.landing-document .page-intro{max-width:80ch}.landing-document .prose{max-width:80ch}
html{scroll-padding-top:0;--anchor-offset:140px}a,summary,:target,[tabindex],.chapter,.anchor-alias{scroll-margin-top:var(--anchor-offset)}
@media(max-width:760px){html{--anchor-offset:180px}.nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 8px}.site-header{min-height:152px}.landing-document{padding-top:36px;padding-bottom:48px}}
@media(max-width:360px){html{--anchor-offset:220px}.nav{grid-template-columns:repeat(2,minmax(0,1fr))}.site-header{padding-top:8px;padding-bottom:6px;gap:0}.brand{font-size:16px}}
@media print{.site-header,.site-footer,.button{display:none}body{background:white;color:black}.document{padding:0}.chapter{break-inside:avoid}.page-intro{padding-top:0}a{color:inherit}}
